an Aristotle's Organon Study Group

Aristotle's On Interpretation Ch. 10. segm. 19b31-19b36 & 20a16-20a30: Notes on the formulation of universal and non-universal assertions, the relations of opposition and implication among them

Aristotle's On Interpretation Ch. 10. segm. 19b19-19b30: A note on the opposition and truth relations of assertions with a universal subject applied non-universally

Aristotle's On Interpretation Ch. 10. segment 19b19-19b30: Sketching out a square of opposition for assertions with three constitutive elements and a particular as subject

Aristotle's On Interpretation Ch. 10. segment 19b19-19b30: A look into the formulation of the contradictory and contrary of an assertion with a particular subject

Aristotle's On Interpretation Ch. 10. segment 19b19: To convey a thing about the subject of an assertion that we express as a noun we predicate “is” or “is not” of the subject in addition to that noun

Aristotle's On Interpretation Ch. 10. segment 19b5-19b18: Breaking the assertion down to its parts. A preliminary outline of the constitutive elements of the assertion

Aristotle's On Interpretation Ch. 9. segment 19a23-19b4: At the crossroad between actuality and possibility. Where assertions about the future diverge

Aristotle's On Interpretation Ch. 9. segment 19a8-19a22: A portion of the future finds its origin in our own deliberation and action. Therefore, the future cannot be predetermined

Aristotle's On Interpretation Ch. 9. segment 18a34-19a7: If an assertion about a future occurence is already true when we utter it, then the future has been predetermined and nothing happens by chance

Aristotle's On Interpretation Ch. 9. segment 18a28-18a33: When one assertion was true, then the other was false - A look at pairs of contradictory assertions about the past

Aristotle's On Interpretation Ch. 8. 18a13-18a27: An assertion ought not to merely appear simple, it ought to truly be simple. A recapitulation and a conclusion to this chapter

Aristotle's On Interpretation Ch. 8. segment 18a27: A look into the relations of truth and falsity in contradictory pairs of compound assertions